[UBUNTU Kinetic,OEM-6.0 0/1] CVE-2023-0469

[Thadeu Lima de Souza Cascardo]

[Impact]
A double fput on io_uring may lead to a use-after-free condition.

[Potential regression]
io_uring might be broken, lead to kernel lockups, crashes, or memory leaks.

[Further review]
In both cases, all the callers were looked up for any extra fput, all were
considered safe.

[Testing]
io_uring programs exercising the path were used, also under memcg, exercising
memory allocation failure conditions.

Lin Ma (1):
  io_uring/filetable: fix file reference underflow

 io_uring/filetable.c | 2 --
 1 file changed, 2 deletions(-)

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2.34.1